Top Selenium Interview Question & Answers

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1. How will you find an element using Selenium?

In Selenium every object or control in a web page is referred as an elements, there are different ways to find an element in a web page they are

• ID
• Name
• Tag
• Attribute
• CSS
• Linktext
• PartialLink Text
• Xpath etc

2. What is the difference between type keys and type commands ?

TypeKeys() will trigger JavaScript event in most of the cases whereas .type() won’t. Type key populates the value attribute using JavaScript whereas .typekeys() emulates like actual user typing

3. What is the use of xpath ?

It is used to find the WebElement in web page. It is very useful to identify the dynamic web elements. Selenium Training in Chennai

 4. What are the advantages of Selenium?

• It supports C#, PHP, Java, Perl, Phython
• It supports different OS like Windows, Linux and Mac OS
• It has got powerful methods to locate elements (Xpath, DOM , CSS)
• It has highly developer community supported by Google

5. How do you achieve synchronization in WebDriver ?

Syntax- driver.manage().timeouts().implicitlyWait(10,TimeUnit.SECONDS);

Here it will wait for 10sec if while execution driver did not find the element in the page immediately. This code will attach with each and every line of the script automatically. It is not required to write every time. Just write it once after opening the browser.

6. What is Selenium Grid ?

Selenium-Grid allows you to run your tests on different machines against different browsers in parallel. That is, running multiple tests at the same time against different machines, different browsers and operating systems. Essentially, Selenium-Grid support distributed test execution. It allows for running your tests in a distributed test execution environment.

7. What is the difference b/w close() and quit()?

close() – it will close the browser where the control is.

quit() – it will close all the browsers opened by WebDriver.

8. How you can use “submit” a form using Selenium ?

You can use “submit” method on element to submit form-

element.submit () ;

Alternatively you can use click method on the element which does form submission

9. Mention what is the difference between Implicit wait and Explicit wait?

Implicit Wait: Sets a timeout for all successive Web Element searches. For the specified amount of time it will try looking for element again and again before throwing a NoSuchElementException.  It waits for elements to show up.

10. Explain what is Datadriven framework and Keyword driven?

Datadriven framework:  In this framework, the test data is separated and kept outside the Test Scripts, while test case logic resides in Test Scripts.  Test data is read from the external files ( Excel Files) and are loaded into the variables inside the Test Script.  Variables are used for both for input values and for verification values.

Keyworddriven framework: The keyword driven frameworks requires the development of data tables and keywords, independent of the test automation.  In a keyword driven test, the functionality of the application under test is documented in a table as well as step by step instructions for each test.